RE: By passing surf control

From: Lewis GySgt Richard C (LewisRC@29palms.usmc.mil)
Date: Wed Feb 25 2004 - 17:13:47 EST


Kuda,

        There is an exploit by changing the requested sites IP address to
octal format. Read more here:

http://cert.uni-stuttgart.de/archive/bugtraq/2001/03/msg00305.html

There is also an exploit by sending the request in multiple packets. Read
more here:

http://www.securityfocus.com/bid/2910

There is another exploit by appending a "." to the end of the requested
site. Read more here:

http://www.securiteam.com/securityreviews/5SP010U0KQ.html

Hope this helps,
Richard Lewis
GSEC, Security+, CCNA, MCP

-----Original Message-----
From: Kudakwashe Chafa-Govha [mailto:KChafa-Govha@bankunitedfla.com]
Sent: Wednesday, February 25, 2004 1:04 PM
To: 'pen-test@securityfocus.com'
Subject: By passing surf control

Hello Group,

Does anyone have any information on how to by pass a web content filter? We
use Surf Control to monitor and filter web content. However, I have one of
my users who was able to by pass this. We tried using a proxy to by pass
just for testing purposes but it did not work. I am still trying to figure
out what other method he used to do so. If anyone has any information , it
will be greatly appreciated.

Thanks

Kuda

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